*{
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    font-style: normal;
    color: white;
    font-size: 20px;
}
body{
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.con{
    width: 300px;
    position: relative;
}

.con::after{
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(to top right,
    #468C73
    ,#A61C1C);
    filter: blur(0px);
    z-index: -2;
}
.con::before{
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background:linear-gradient(to top right
    ,rgb(70, 140, 115)
    ,rgba(70, 140, 115,0.5)
    ,rgba(0, 0, 0,0)
    ,rgba(166, 28, 28,0.5)
    ,rgb(166, 28, 28));
    z-index: -1;
}
.menu{
    overflow: hidden;
    /*border-top-left-radius: 10px;
    border-bottom-right-radius: 10px;*/
    border-radius:10px;
}
.wel{
    text-align: center;
}
.title{
    display: block;
    position: relative;
    padding: 16px 20px;
    background-color: #032612;
}
.tit::before{
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    background: #032612;
    left: 20px;
    bottom: -7px;
    transform: rotate(45deg);

}
.selected{
    overflow: hidden;
    max-height: 0;
    transition: all 0.3s ease;
}
.selected a{
    display: block;
    position: relative;
    padding: 16px 20px;
    margin: 4px 0;
    font-size: 16px;
}
.selected a::before{
    content: '';
    width: 6px;
    height: 100%;
    background: rgb(242, 214, 162);
    position: absolute;
    top: 0;
    left: 0;
    filter: blur(3px);
    transition: .3s;
    opacity: 0;
}
.selected a:hover::before{
    opacity: 1;
}
.btn:target .selected{
    max-height: 30em;
}